Updated README.

[adns] / src / general.c

diff --git a/src/general.c b/src/general.c
index 71009f7d674c36d22221e1708fba911c10bcccd7..ae7cac0f2b06910c7ece07346208e42788a28e21 100644 (file)
--- a/src/general.c
+++ b/src/general.c
@@ -4,7 +4,12 @@
  * - vbuf handling
  */
 /*
  * - vbuf handling
  */
 /*

- *  This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
+ *  This file is
+ *    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
+ *
+ *  It is part of adns, which is
+ *    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
+ *    Copyright (C) 1999 Tony Finch <dot@dotat.at>

  *  
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by


@@ -22,7 +27,6 @@
  */
 
 #include <stdlib.h>
  */
 
 #include <stdlib.h>

-#include <string.h>

 
 #include <sys/types.h>
 #include <sys/socket.h>
 
 #include <sys/types.h>
 #include <sys/socket.h>


@@ -200,6 +204,7 @@ adns_status adns_rr_info(adns_rrtype type,
   return st;
 }
 
   return st;
 }
 

+

 #define SINFO(n,s) { adns_s_##n, #n, s }
 
 static const struct sinfo {
 #define SINFO(n,s) { adns_s_##n, #n, s }
 
 static const struct sinfo {


@@ -211,6 +216,7 @@ static const struct sinfo {
 
   SINFO(  nomemory,            "Out of memory"                                 ),
   SINFO(  unknownrrtype,       "Query not implemented in DNS library"          ),
 
   SINFO(  nomemory,            "Out of memory"                                 ),
   SINFO(  unknownrrtype,       "Query not implemented in DNS library"          ),

+  SINFO(  systemfail,          "General resolver or system failure"            ),

 
   SINFO(  timeout,             "DNS query timed out"                           ),
   SINFO(  allservfail,         "All nameservers failed"                        ),
 
   SINFO(  timeout,             "DNS query timed out"                           ),
   SINFO(  allservfail,         "All nameservers failed"                        ),


@@ -225,7 +231,7 @@ static const struct sinfo {
   SINFO(  rcodeunknown,        "Nameserver sent unknown response code"         ),
   
   SINFO(  inconsistent,        "Inconsistent resource records in DNS"          ),
   SINFO(  rcodeunknown,        "Nameserver sent unknown response code"         ),
   
   SINFO(  inconsistent,        "Inconsistent resource records in DNS"          ),

-  SINFO(  prohibitedcname,     "DNS data refers to an alias"                   ),
+  SINFO(  prohibitedcname,     "DNS alias found where canonical name wanted"   ),

   SINFO(  answerdomaininvalid, "Found syntactically invalid domain name"       ),
   SINFO(  answerdomaintoolong, "Found overly-long domain name"                 ),
   SINFO(  invaliddata,         "Found invalid DNS data"                        ),
   SINFO(  answerdomaininvalid, "Found syntactically invalid domain name"       ),
   SINFO(  answerdomaintoolong, "Found overly-long domain name"                 ),
   SINFO(  invaliddata,         "Found invalid DNS data"                        ),


@@ -235,7 +241,7 @@ static const struct sinfo {
   SINFO(  querydomaintoolong,  "Domain name is too long"                       ),
 
   SINFO(  nxdomain,            "No such domain"                                ),
   SINFO(  querydomaintoolong,  "Domain name is too long"                       ),
 
   SINFO(  nxdomain,            "No such domain"                                ),

-  SINFO(  nodata,              "No such data"                                  ),
+  SINFO(  nodata,              "No such data"                                  )

 };
 
 static int si_compar(const void *key, const void *elem) {
 };
 
 static int si_compar(const void *key, const void *elem) {


@@ -263,6 +269,43 @@ const char *adns_errabbrev(adns_status st) {
   return si->abbrev;
 }
 
   return si->abbrev;
 }
 

+
+#define STINFO(max) { adns_s_max_##max, #max }
+
+static const struct stinfo {
+  adns_status stmax;
+  const char *abbrev;
+} stinfos[]= {
+  { adns_s_ok, "ok" },
+  STINFO(  localfail   ),
+  STINFO(  remotefail  ),
+  STINFO(  tempfail    ),
+  STINFO(  misconfig   ),
+  STINFO(  misquery    ),
+  STINFO(  permfail    )
+};
+
+static int sti_compar(const void *key, const void *elem) {
+  const adns_status *st= key;
+  const struct stinfo *sti= elem;
+
+  adns_status here, min, max;
+
+  here= *st;
+  min= (sti==stinfos) ? 0 : sti[-1].stmax+1;
+  max= sti->stmax;
+  
+  return here < min  ? -1 : here > max ? 1 : 0;
+}
+
+const char *adns_errtypeabbrev(adns_status st) {
+  const struct stinfo *sti;
+
+  sti= bsearch(&st,stinfos,sizeof(stinfos)/sizeof(*stinfos),sizeof(*stinfos),sti_compar);
+  return sti->abbrev;
+}
+
+

 void adns__isort(void *array, int nobjs, int sz, void *tempbuf,
                 int (*needswap)(void *context, const void *a, const void *b),
                 void *context) {
 void adns__isort(void *array, int nobjs, int sz, void *tempbuf,
                 int (*needswap)(void *context, const void *a, const void *b),
                 void *context) {